"Keep your wits about you. Be smart. Say no if something makes you feel uncomfortable. Have goals and go after them, and practice good manners."

Rosie is happily settled with boyfriend Jason Statham and says when they visit America for work people think they are "bonkers" because of their love of cockney rhyming slang phrases.

She said: "Jason has taught me nearly the whole diction of cockney rhyming slang. I get quite a few odd looks because people don't expect it to come out of my mouth. In the U.S. people just think we are bonkers!"

The British star feels "mostly" happy and thinks true happiness comes from working on yourself and doing what you think is right.

She said: "I do believe to be happy you have to work on yourself. You have to listen to yourself and stay true to your heart."